#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Compiler.h"
+#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetAsmInfo.h"
#include "llvm/Target/TargetRegisterInfo.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetOptions.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringExtras.h"
-#include <set>
+#include "llvm/ADT/StringSet.h"
using namespace llvm;
STATISTIC(EmittedInsts, "Number of machine instrs printed");
namespace {
struct VISIBILITY_HIDDEN PPCAsmPrinter : public AsmPrinter {
- std::set<std::string> FnStubs, GVStubs;
+ StringSet<> FnStubs, GVStubs, HiddenGVStubs;
const PPCSubtarget &Subtarget;
- PPCAsmPrinter(std::ostream &O, TargetMachine &TM, const TargetAsmInfo *T)
+ PPCAsmPrinter(raw_ostream &O, TargetMachine &TM, const TargetAsmInfo *T)
: AsmPrinter(O, TM, T), Subtarget(TM.getSubtarget<PPCSubtarget>()) {
}
void printOperand(const MachineInstr *MI, unsigned OpNo) {
const MachineOperand &MO = MI->getOperand(OpNo);
- if (MO.isRegister()) {
+ if (MO.isReg()) {
printRegister(MO, false);
- } else if (MO.isImmediate()) {
+ } else if (MO.isImm()) {
O << MO.getImm();
} else {
printOp(MO);
O << (unsigned short)MI->getOperand(OpNo).getImm();
}
void printS16X4ImmOperand(const MachineInstr *MI, unsigned OpNo) {
- if (MI->getOperand(OpNo).isImmediate()) {
+ if (MI->getOperand(OpNo).isImm()) {
O << (short)(MI->getOperand(OpNo).getImm()*4);
} else {
O << "lo16(";
void printBranchOperand(const MachineInstr *MI, unsigned OpNo) {
// Branches can take an immediate operand. This is used by the branch
// selection pass to print $+8, an eight byte displacement from the PC.
- if (MI->getOperand(OpNo).isImmediate()) {
+ if (MI->getOperand(OpNo).isImm()) {
O << "$+" << MI->getOperand(OpNo).getImm()*4;
} else {
printOp(MI->getOperand(OpNo));
O << "\"L" << getFunctionNumber() << "$pb\":";
}
void printSymbolHi(const MachineInstr *MI, unsigned OpNo) {
- if (MI->getOperand(OpNo).isImmediate()) {
+ if (MI->getOperand(OpNo).isImm()) {
printS16ImmOperand(MI, OpNo);
} else {
if (Subtarget.isDarwin()) O << "ha16(";
}
}
void printSymbolLo(const MachineInstr *MI, unsigned OpNo) {
- if (MI->getOperand(OpNo).isImmediate()) {
+ if (MI->getOperand(OpNo).isImm()) {
printS16ImmOperand(MI, OpNo);
} else {
if (Subtarget.isDarwin()) O << "lo16(";
void printMemRegImm(const MachineInstr *MI, unsigned OpNo) {
printSymbolLo(MI, OpNo);
O << '(';
- if (MI->getOperand(OpNo+1).isRegister() &&
+ if (MI->getOperand(OpNo+1).isReg() &&
MI->getOperand(OpNo+1).getReg() == PPC::R0)
O << "0";
else
O << ')';
}
void printMemRegImmShifted(const MachineInstr *MI, unsigned OpNo) {
- if (MI->getOperand(OpNo).isImmediate())
+ if (MI->getOperand(OpNo).isImm())
printS16X4ImmOperand(MI, OpNo);
else
printSymbolLo(MI, OpNo);
O << '(';
- if (MI->getOperand(OpNo+1).isRegister() &&
+ if (MI->getOperand(OpNo+1).isReg() &&
MI->getOperand(OpNo+1).getReg() == PPC::R0)
O << "0";
else
/// PPCLinuxAsmPrinter - PowerPC assembly printer, customized for Linux
struct VISIBILITY_HIDDEN PPCLinuxAsmPrinter : public PPCAsmPrinter {
-
- DwarfWriter DW;
+ DwarfWriter *DW;
MachineModuleInfo *MMI;
- PPCLinuxAsmPrinter(std::ostream &O, PPCTargetMachine &TM,
+ PPCLinuxAsmPrinter(raw_ostream &O, PPCTargetMachine &TM,
const TargetAsmInfo *T)
- : PPCAsmPrinter(O, TM, T), DW(O, this, T), MMI(0) {
+ : PPCAsmPrinter(O, TM, T), DW(0), MMI(0) {
}
virtual const char *getPassName() const {
void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
AU.addRequired<MachineModuleInfo>();
+ AU.addRequired<DwarfWriter>();
PPCAsmPrinter::getAnalysisUsage(AU);
}
- /// getSectionForFunction - Return the section that we should emit the
- /// specified function body into.
- virtual std::string getSectionForFunction(const Function &F) const;
void printModuleLevelGV(const GlobalVariable* GVar);
};
/// OS X
struct VISIBILITY_HIDDEN PPCDarwinAsmPrinter : public PPCAsmPrinter {
- DwarfWriter DW;
+ DwarfWriter *DW;
MachineModuleInfo *MMI;
-
- PPCDarwinAsmPrinter(std::ostream &O, PPCTargetMachine &TM,
+ raw_ostream &OS;
+ PPCDarwinAsmPrinter(raw_ostream &O, PPCTargetMachine &TM,
const TargetAsmInfo *T)
- : PPCAsmPrinter(O, TM, T), DW(O, this, T), MMI(0) {
+ : PPCAsmPrinter(O, TM, T), DW(0), MMI(0), OS(O) {
}
virtual const char *getPassName() const {
void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
AU.addRequired<MachineModuleInfo>();
+ AU.addRequired<DwarfWriter>();
PPCAsmPrinter::getAnalysisUsage(AU);
}
- /// getSectionForFunction - Return the section that we should emit the
- /// specified function body into.
- virtual std::string getSectionForFunction(const Function &F) const;
void printModuleLevelGV(const GlobalVariable* GVar);
};
} // end of anonymous namespace
// External or weakly linked global variables need non-lazily-resolved stubs
if (TM.getRelocationModel() != Reloc::Static) {
- if (((GV->isDeclaration() || GV->hasWeakLinkage() ||
- GV->hasLinkOnceLinkage() || GV->hasCommonLinkage()))) {
- GVStubs.insert(Name);
- printSuffixedName(Name, "$non_lazy_ptr");
+ if (GV->isDeclaration() || GV->mayBeOverridden()) {
+ if (GV->hasHiddenVisibility()) {
+ if (!GV->isDeclaration() && !GV->hasCommonLinkage())
+ O << Name;
+ else {
+ HiddenGVStubs.insert(Name);
+ printSuffixedName(Name, "$non_lazy_ptr");
+ }
+ } else {
+ GVStubs.insert(Name);
+ printSuffixedName(Name, "$non_lazy_ptr");
+ }
if (GV->hasExternalWeakLinkage())
ExtWeakSymbols.insert(GV);
return;
}
O << Name;
- if (MO.getOffset() > 0)
- O << "+" << MO.getOffset();
- else if (MO.getOffset() < 0)
- O << MO.getOffset();
+ printOffset(MO.getOffset());
if (GV->hasExternalWeakLinkage())
ExtWeakSymbols.insert(GV);
void PPCAsmPrinter::EmitExternalGlobal(const GlobalVariable *GV) {
std::string Name = getGlobalLinkName(GV);
if (TM.getRelocationModel() != Reloc::Static) {
- GVStubs.insert(Name);
+ if (GV->hasHiddenVisibility())
+ HiddenGVStubs.insert(Name);
+ else
+ GVStubs.insert(Name);
printSuffixedName(Name, "$non_lazy_ptr");
return;
}
return false;
case 'L': // Write second word of DImode reference.
// Verify that this operand has two consecutive registers.
- if (!MI->getOperand(OpNo).isRegister() ||
+ if (!MI->getOperand(OpNo).isReg() ||
OpNo+1 == MI->getNumOperands() ||
- !MI->getOperand(OpNo+1).isRegister())
+ !MI->getOperand(OpNo+1).isReg())
return true;
++OpNo; // Return the high-part.
break;
case 'I':
// Write 'i' if an integer constant, otherwise nothing. Used to print
// addi vs add, etc.
- if (MI->getOperand(OpNo).isImmediate())
+ if (MI->getOperand(OpNo).isImm())
O << "i";
return false;
}
const char *ExtraCode) {
if (ExtraCode && ExtraCode[0])
return true; // Unknown modifier.
- if (MI->getOperand(OpNo).isRegister())
+ if (MI->getOperand(OpNo).isReg())
printMemRegReg(MI, OpNo);
else
printMemRegImm(MI, OpNo);
// Print out labels for the function.
const Function *F = MF.getFunction();
- SwitchToTextSection(getSectionForFunction(*F).c_str(), F);
+ SwitchToSection(TAI->SectionForGlobal(F));
switch (F->getLinkage()) {
default: assert(0 && "Unknown linkage type!");
+ case Function::PrivateLinkage:
case Function::InternalLinkage: // Symbols default to internal.
break;
case Function::ExternalLinkage:
O << CurrentFnName << ":\n";
// Emit pre-function debug information.
- DW.BeginFunction(&MF);
+ DW->BeginFunction(&MF);
// Print out code for the function.
for (MachineFunction::const_iterator I = MF.begin(), E = MF.end();
// Print out jump tables referenced by the function.
EmitJumpTableInfo(MF.getJumpTableInfo(), MF);
+ SwitchToSection(TAI->SectionForGlobal(F));
+
// Emit post-function debug information.
- DW.EndFunction();
+ DW->EndFunction(&MF);
+
+ O.flush();
// We didn't modify anything.
return false;
bool Result = AsmPrinter::doInitialization(M);
// Emit initial debug information.
- DW.BeginModule(&M);
-
- // AsmPrinter::doInitialization should have done this analysis.
- MMI = getAnalysisToUpdate<MachineModuleInfo>();
+ MMI = getAnalysisIfAvailable<MachineModuleInfo>();
assert(MMI);
- DW.SetModuleInfo(MMI);
+ DW = getAnalysisIfAvailable<DwarfWriter>();
+ assert(DW && "DwarfWriter is not available");
+ DW->BeginModule(&M, MMI, O, this, TAI);
// GNU as handles section names wrapped in quotes
Mang->setUseQuotes(true);
- SwitchToTextSection(TAI->getTextSection());
+ SwitchToSection(TAI->getTextSection());
return Result;
}
/// PrintUnmangledNameSafely - Print out the printable characters in the name.
/// Don't print things like \n or \0.
-static void PrintUnmangledNameSafely(const Value *V, std::ostream &OS) {
+static void PrintUnmangledNameSafely(const Value *V, raw_ostream &OS) {
for (const char *Name = V->getNameStart(), *E = Name+V->getNameLen();
Name != E; ++Name)
if (isprint(*Name))
return;
std::string name = Mang->getValueName(GVar);
- std::string SectionName = TAI->SectionForGlobal(GVar);
printVisibility(name, GVar->getVisibility());
Constant *C = GVar->getInitializer();
const Type *Type = C->getType();
- unsigned Size = TD->getABITypeSize(Type);
+ unsigned Size = TD->getTypePaddedSize(Type);
unsigned Align = TD->getPreferredAlignmentLog(GVar);
- SwitchToDataSection(SectionName.c_str());
+ SwitchToSection(TAI->SectionForGlobal(GVar));
if (C->isNullValue() && /* FIXME: Verify correct */
!GVar->hasSection() &&
- (GVar->hasInternalLinkage() || GVar->hasExternalLinkage() ||
- GVar->isWeakForLinker())) {
+ (GVar->hasLocalLinkage() || GVar->hasExternalLinkage() ||
+ GVar->mayBeOverridden())) {
if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
if (GVar->hasExternalLinkage()) {
O << "\t.type " << name << ", @object\n";
O << name << ":\n";
O << "\t.zero " << Size << '\n';
- } else if (GVar->hasInternalLinkage()) {
+ } else if (GVar->hasLocalLinkage()) {
O << TAI->getLCOMMDirective() << name << ',' << Size;
} else {
O << ".comm " << name << ',' << Size;
<< "\t.type " << name << ", @object\n";
// FALL THROUGH
case GlobalValue::InternalLinkage:
+ case GlobalValue::PrivateLinkage:
break;
default:
cerr << "Unknown linkage type!";
// TODO
// Emit initial debug information.
- DW.EndModule();
+ DW->EndModule();
return AsmPrinter::doFinalization(M);
}
-std::string PPCLinuxAsmPrinter::getSectionForFunction(const Function &F) const {
- return TAI->SectionForGlobal(&F);
-}
-
-std::string PPCDarwinAsmPrinter::getSectionForFunction(const Function &F) const {
- return TAI->SectionForGlobal(&F);
-}
-
/// runOnMachineFunction - This uses the printMachineInstruction()
/// method to print assembly for each instruction.
///
// Print out labels for the function.
const Function *F = MF.getFunction();
- SwitchToTextSection(getSectionForFunction(*F).c_str(), F);
+ SwitchToSection(TAI->SectionForGlobal(F));
switch (F->getLinkage()) {
default: assert(0 && "Unknown linkage type!");
+ case Function::PrivateLinkage:
case Function::InternalLinkage: // Symbols default to internal.
break;
case Function::ExternalLinkage:
printVisibility(CurrentFnName, F->getVisibility());
- EmitAlignment(OptimizeForSize ? 2 : 4, F);
+ EmitAlignment(F->hasFnAttr(Attribute::OptimizeForSize) ? 2 : 4, F);
O << CurrentFnName << ":\n";
// Emit pre-function debug information.
- DW.BeginFunction(&MF);
+ DW->BeginFunction(&MF);
// If the function is empty, then we need to emit *something*. Otherwise, the
// function's label might be associated with something that it wasn't meant to
EmitJumpTableInfo(MF.getJumpTableInfo(), MF);
// Emit post-function debug information.
- DW.EndFunction();
+ DW->EndFunction(&MF);
// We didn't modify anything.
return false;
bool Result = AsmPrinter::doInitialization(M);
// Emit initial debug information.
- DW.BeginModule(&M);
-
// We need this for Personality functions.
// AsmPrinter::doInitialization should have done this analysis.
- MMI = getAnalysisToUpdate<MachineModuleInfo>();
+ MMI = getAnalysisIfAvailable<MachineModuleInfo>();
assert(MMI);
- DW.SetModuleInfo(MMI);
+ DW = getAnalysisIfAvailable<DwarfWriter>();
+ assert(DW && "DwarfWriter is not available");
+ DW->BeginModule(&M, MMI, O, this, TAI);
// Darwin wants symbols to be quoted if they have complex names.
Mang->setUseQuotes(true);
SwitchToTextSection("\t.section __TEXT,__symbol_stub1,symbol_stubs,"
"pure_instructions,16");
}
- SwitchToTextSection(TAI->getTextSection());
+ SwitchToSection(TAI->getTextSection());
return Result;
}
}
std::string name = Mang->getValueName(GVar);
- std::string SectionName = TAI->SectionForGlobal(GVar);
printVisibility(name, GVar->getVisibility());
Constant *C = GVar->getInitializer();
const Type *Type = C->getType();
- unsigned Size = TD->getABITypeSize(Type);
+ unsigned Size = TD->getTypePaddedSize(Type);
unsigned Align = TD->getPreferredAlignmentLog(GVar);
- SwitchToDataSection(SectionName.c_str());
+ SwitchToSection(TAI->SectionForGlobal(GVar));
if (C->isNullValue() && /* FIXME: Verify correct */
!GVar->hasSection() &&
- (GVar->hasInternalLinkage() || GVar->hasExternalLinkage() ||
- GVar->isWeakForLinker())) {
+ (GVar->hasLocalLinkage() || GVar->hasExternalLinkage() ||
+ GVar->mayBeOverridden()) &&
+ TAI->SectionKindForGlobal(GVar) != SectionKind::RODataMergeStr) {
if (Size == 0) Size = 1; // .comm Foo, 0 is undefined, avoid it.
if (GVar->hasExternalLinkage()) {
O << "\t.globl " << name << '\n';
O << "\t.zerofill __DATA, __common, " << name << ", "
<< Size << ", " << Align;
- } else if (GVar->hasInternalLinkage()) {
+ } else if (GVar->hasLocalLinkage()) {
O << TAI->getLCOMMDirective() << name << ',' << Size << ',' << Align;
} else if (!GVar->hasCommonLinkage()) {
O << "\t.globl " << name << '\n'
O << "\t.globl " << name << '\n';
// FALL THROUGH
case GlobalValue::InternalLinkage:
+ case GlobalValue::PrivateLinkage:
break;
default:
cerr << "Unknown linkage type!";
// Output stubs for dynamically-linked functions
if (TM.getRelocationModel() == Reloc::PIC_) {
- for (std::set<std::string>::iterator i = FnStubs.begin(), e = FnStubs.end();
+ for (StringSet<>::iterator i = FnStubs.begin(), e = FnStubs.end();
i != e; ++i) {
SwitchToTextSection("\t.section __TEXT,__picsymbolstub1,symbol_stubs,"
"pure_instructions,32");
EmitAlignment(4);
- std::string p = *i;
- std::string L0p = (p[0]=='\"') ? "\"L0$" + p.substr(1) : "L0$" + p ;
+ const char *p = i->getKeyData();
+ bool hasQuote = p[0]=='\"';
printSuffixedName(p, "$stub");
O << ":\n";
- O << "\t.indirect_symbol " << *i << '\n';
+ O << "\t.indirect_symbol " << p << '\n';
O << "\tmflr r0\n";
- O << "\tbcl 20,31," << L0p << '\n';
- O << L0p << ":\n";
+ O << "\tbcl 20,31,";
+ if (hasQuote)
+ O << "\"L0$" << &p[1];
+ else
+ O << "L0$" << p;
+ O << '\n';
+ if (hasQuote)
+ O << "\"L0$" << &p[1];
+ else
+ O << "L0$" << p;
+ O << ":\n";
O << "\tmflr r11\n";
O << "\taddis r11,r11,ha16(";
printSuffixedName(p, "$lazy_ptr");
- O << "-" << L0p << ")\n";
+ O << "-";
+ if (hasQuote)
+ O << "\"L0$" << &p[1];
+ else
+ O << "L0$" << p;
+ O << ")\n";
O << "\tmtlr r0\n";
if (isPPC64)
O << "\tldu r12,lo16(";
else
O << "\tlwzu r12,lo16(";
printSuffixedName(p, "$lazy_ptr");
- O << "-" << L0p << ")(r11)\n";
+ O << "-";
+ if (hasQuote)
+ O << "\"L0$" << &p[1];
+ else
+ O << "L0$" << p;
+ O << ")(r11)\n";
O << "\tmtctr r12\n";
O << "\tbctr\n";
SwitchToDataSection(".lazy_symbol_pointer");
printSuffixedName(p, "$lazy_ptr");
O << ":\n";
- O << "\t.indirect_symbol " << *i << '\n';
+ O << "\t.indirect_symbol " << p << '\n';
if (isPPC64)
O << "\t.quad dyld_stub_binding_helper\n";
else
O << "\t.long dyld_stub_binding_helper\n";
}
} else {
- for (std::set<std::string>::iterator i = FnStubs.begin(), e = FnStubs.end();
+ for (StringSet<>::iterator i = FnStubs.begin(), e = FnStubs.end();
i != e; ++i) {
SwitchToTextSection("\t.section __TEXT,__symbol_stub1,symbol_stubs,"
"pure_instructions,16");
EmitAlignment(4);
- std::string p = *i;
+ const char *p = i->getKeyData();
printSuffixedName(p, "$stub");
O << ":\n";
- O << "\t.indirect_symbol " << *i << '\n';
+ O << "\t.indirect_symbol " << p << '\n';
O << "\tlis r11,ha16(";
printSuffixedName(p, "$lazy_ptr");
O << ")\n";
SwitchToDataSection(".lazy_symbol_pointer");
printSuffixedName(p, "$lazy_ptr");
O << ":\n";
- O << "\t.indirect_symbol " << *i << '\n';
+ O << "\t.indirect_symbol " << p << '\n';
if (isPPC64)
O << "\t.quad dyld_stub_binding_helper\n";
else
// Output stubs for external and common global variables.
if (!GVStubs.empty()) {
SwitchToDataSection(".non_lazy_symbol_pointer");
- for (std::set<std::string>::iterator I = GVStubs.begin(),
- E = GVStubs.end(); I != E; ++I) {
- std::string p = *I;
+ for (StringSet<>::iterator i = GVStubs.begin(), e = GVStubs.end();
+ i != e; ++i) {
+ std::string p = i->getKeyData();
printSuffixedName(p, "$non_lazy_ptr");
O << ":\n";
- O << "\t.indirect_symbol " << *I << '\n';
+ O << "\t.indirect_symbol " << p << '\n';
if (isPPC64)
O << "\t.quad\t0\n";
else
}
}
+ if (!HiddenGVStubs.empty()) {
+ SwitchToSection(TAI->getDataSection());
+ for (StringSet<>::iterator i = HiddenGVStubs.begin(), e = HiddenGVStubs.end();
+ i != e; ++i) {
+ std::string p = i->getKeyData();
+ EmitAlignment(isPPC64 ? 3 : 2);
+ printSuffixedName(p, "$non_lazy_ptr");
+ O << ":\n";
+ if (isPPC64)
+ O << "\t.quad\t";
+ else
+ O << "\t.long\t";
+ O << p << '\n';
+ }
+ }
+
+
// Emit initial debug information.
- DW.EndModule();
+ DW->EndModule();
// Funny Darwin hack: This flag tells the linker that no global symbols
// contain code that falls through to other global symbols (e.g. the obvious
/// for a MachineFunction to the given output stream, in a format that the
/// Darwin assembler can deal with.
///
-FunctionPass *llvm::createPPCAsmPrinterPass(std::ostream &o,
+FunctionPass *llvm::createPPCAsmPrinterPass(raw_ostream &o,
PPCTargetMachine &tm) {
const PPCSubtarget *Subtarget = &tm.getSubtarget<PPCSubtarget>();
}
} Registrator;
}
+
+extern "C" int PowerPCAsmPrinterForceLink;
+int PowerPCAsmPrinterForceLink = 0;
projects / oota-llvm.git / blobdiff